The study of living organisms is called biology. It encompasses a wide range of topics, including the structure, function, growth, evolution, and distribution of life forms. Biology is divided into several sub-disciplines, such as microbiology, zoology, botany, and ecology, each focusing on different aspects of life. Scientists in this field, known as biologists, utilize various methods to explore and understand living systems at cellular, organismal, and ecological levels. Biology plays a crucial role in addressing global challenges, such as health issues, environmental conservation, and the understanding of ecosystems, making it essential for advancements in medicine, agriculture, and conservation efforts.